EP0062886B1 - Feuille à structure laminée - Google Patents

Feuille à structure laminée Download PDF

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Publication number
EP0062886B1
EP0062886B1 EP19820102935 EP82102935A EP0062886B1 EP 0062886 B1 EP0062886 B1 EP 0062886B1 EP 19820102935 EP19820102935 EP 19820102935 EP 82102935 A EP82102935 A EP 82102935A EP 0062886 B1 EP0062886 B1 EP 0062886B1
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EP
European Patent Office
Prior art keywords
ethylene
elastomer
weight
blend
chlorinated hydrocarbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19820102935
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German (de)
English (en)
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EP0062886A3 (en
EP0062886A2 (fr
Inventor
Bernard Fornelius Anderson
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EIDP Inc
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EI Du Pont de Nemours and Co
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Priority to AT82102935T priority Critical patent/ATE15462T1/de
Publication of EP0062886A2 publication Critical patent/EP0062886A2/fr
Publication of EP0062886A3 publication Critical patent/EP0062886A3/en
Application granted granted Critical
Publication of EP0062886B1 publication Critical patent/EP0062886B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/16—EPDM, i.e. ethylene propylene diene monomer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y10T428/31917—Next to polyene polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31924—Including polyene monomers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31931—Polyene monomer-containing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31935—Ester, halide or nitrile of addition polymer

Definitions

  • This invention is directed to composite structures comprising sheets of a chlorinated hydrocarbon elastomer composition laminated to sheets of linear polyethylene or linear copolymers of ethylene with a-olefins.
  • Chlorinated hydrocarbon elastomers such as chlorosulfonated polyethylene and chlorinated polyethylene have gained wide use in certain specialized applications where water, ozone, oxygen, and weather resistance and resistance to chemicals are important.
  • Elastomeric chlorosulfonated polyethylene is available from E. I. du Pont de Nemours and Company, Wilmington, Delaware, while chlorinated polyethylene is available from Dow Corporation, Midland, Michigan. The materials are used among others, in the manufacture of pool and pond liners as well as in roofing applications.
  • a mechanically strong substrate for example, a fabric woven from inorganic or organic fibers.
  • Chlorosulfonated polyethylene first is blended with polyethylene or with cyclized rubber; the mixture is then dissolved or dispersed in a suitable organic liquid and coated or sprayed onto a polyethylene sheet. The liquid is allowed to evaporate, leaving behind a well-adhering polymer coating; see U.S. Patents 2,925,354 to Berardinelli et al. and 2,854,425 to Boger et al. Coating various substrates with a solution of chlorinated polyethylene is described in Canadian Patent 903,021 to Ogawa et al. The drawback of these methods is that they can produce at most a thin coating and are not capable under practical operating conditions to provide a coating several hundredths of mm thick.
  • a laminate sheet structure comprising hot-bonded alternate plies of a linear polymer of ethylene containing 0 to about 10 weight percent of a C 3 C 8 a-olefin comonomer and of a composition consisting essentially of a blend of about 75-93 weight % of a chlorinated hydrocarbon elastomer selected from the group consisting of chlorosulfonated polyethylene containing about 22-28% by weight CI and 0.4-1.2% by weight S and chlorinated polyethylene containing about 22-28% by weight CI with 7-25 weight % of an ethylene/propylene copolymer elastomer.
  • a process for hot bonding a sheet of a composition consisting essentially of chlorosulfonated polyethylene or chlorinated polyethylene to a sheet of ethylene polymer, to form a laminate the improvement of using a sheet of linear ethylene polymer containing 0 to about 10 weight percent of a C 3 C 8 a-olefin comonomer and a sheet of a composition consisting essentially of a blend of a chlorinated hydrocarbon elastomer which is a chlorinated polyethylene containing about 22-28% by weight CI or a chlorosulfonated polyethylene containing about 22-28% by weight CI and 0.4-1.2% by weight S with an ethylene/propylene copolymer elastomer, the respective proportions of the blend components being about 75-93 weight % of the former and 7-25 weight % of the latter.
  • composition may contain other components, so long as they do not prevent the benefits of the invention from being realized.
  • the laminated sheet structures of the present invention may be of the two-ply type or three-ply type or, in fact, may contain any number of plies.
  • the most common structure, which would have virtually unlimited applications, would have three plies, that is, a center sheet of linear ethylene polymer and outer sheets of chlorinated hydrocarbon elastomer-ethylene/propylene copolymer elastomer blend.
  • chlorosulfonated polyethylene and chlorinated polyethylene containing an amount of chlorine substantially outside the above-recited range of 22-28% do not provide laminates having satisfactory peel strength.
  • the ethylene/propylene copolymer component of the blend can be any ethylene/propylene dipolymer or ethylene/propylene/diene terpolymer or tetrapolymer.
  • dipolymers are known as EPM elastomers
  • terpolymers and tetrapolymers are known as EPDM elastomers
  • EPM and EPDM designation are accepted terms, wherein M stands for a rubber having a saturated chain of polymethylene type (see, for example, ASTM designation D-1418-72a); and several types of EPM and EPDM elastomers are known or are commercially available.
  • EPDM elastomers are copolymers of ethylene with propylene and with a nonconjugated diene having one reactive double bond. They may, in addition, contain a minor amount of a second diene, which may have two reactive double bonds.
  • the diene of the first type may be, for example, 1,4-hexadiene, 2-methyl-1,5-hexadiene; 1,9-octadecadiene, dicyclopentadiene, tricyclopentadiene, 5-ethylidene-2-norbornene, and 5-methylene-2-norbornene.
  • the diene of the second type may be, for example, 1,4-pentadiene, 1,5-hexadiene, 1,7-octadiene, 1,20-heneicosadiene, 5-(5-hexenyl)-2-norbornene, 2,5-norbornadiene, 5-(2-propenyl)-2-norbornene, and the so-called "norborneonorbornene” obtained by reaction of cyclopentadiene with norbornadiene-2,5.
  • EPDM elastomers of both terpolymer and tetrapolymer type can be obtained from E. I. du Pont de Nemours and Company, Wilmington, Delaware, U.S.A.
  • EPDM elastomers contain about 50-75 weight % of ethylene and 1-6 weight % of diene or dienes, the remainder being propylene. Such elastomers are suitable in the structures and the method of this invention. Those monomer proportions, however, are not considered critical. Ethylene/ propylene dipolymers are available, among others, from EXXON, Copolymer Corporation, B. F. Goodrich, and Uniroyal. Both EPDM and EPM elastomers can be made according to the techniques described in a review article by F. P. Baldwin et al. in Rubber Chemistry and Technology, Vol. 45, pp. 709-881 (1972). The preferred amount of ethylene/propylene copolymer elastomer is 10-20% by weight of the blend.
  • the chlorinated hydrocarbon elastomer-ethylene/propylene copolymer elastomer blend normally will be further compounded, for example, with pigments, fillers, stabilizers and processing aids.
  • Usual fillers which are added to increase modulus, block light, and reduce cost, include, for example, carbon black, whiting, and clay.
  • Basic metal oxides such as zinc and magnesium oxides as well as epoxy resins can be added as HCI-absorbing stabilizers.
  • Processing aids such as, for example, stearamide and poly(ethylene oxide) improve calendering and prevent blocking of rolled or folded sheet.
  • the chlorinated hydrocarbon elastomers compounded with all those additives may be difficult to process. This is especially true of chlorinated polyethylene.
  • a high-molecular weight plasticizer such as for example an ethylene/vinyl acetate copolymer
  • Low molecular weight plasticizers and processing oils when used alone, lower the mechanical strength of the chlorinated hydrocarbon elastomers and may interfere with the ability of such elastomers to adhere to ethylene polymer substrate.
  • the amount of high molecular weight plasticizer may be up to about 10%, and the total amount of all additives may be up to about 150%, based on the weight of the chlorinated hydrocarbon elastomer-ethylene/propylene copolymer elastomer blend.
  • sheets made of such blends can be hot-bonded to linear ethylene polymer sheets to give laminates having high mechanical strength and stretchability and high peel strength.
  • Such laminates can stretch as much as 300%, for example, to fill a sink hole in a pond under drastic conditions.
  • Linear polymers of ethylene include both homopolymer and copolymers of ethylene with other a-olefins.
  • the homopolymer is known as high density polyethylene (density of about 0.940-0.980 g/ml) and can be obtained from several suppliers, including E. I. du Pont de Nemours and Company and Union Carbide Corporation.
  • Other a-olefins, which may be present as comonomers in linear ethylene polymers include, for example, propylene, 1-butene, isobutylene, 1-pentene, 1-hexene, 1-heptene, and 1-octene.
  • copolymers are available commercially; for example, a copolymer with 1-octene from Dow Corporation, a copolymer with 1-hexene from Phillips Petroleum Co., and a copolymer with 1-butene from Du Pont Canada Inc. All linear polymers are made by polymerization or copolymerization in the presence of a coordination type catalyst, as is well known to the art. Copolymerization of ethylene with C 3- C 18 a-olefins is described in U.S. Patent 4,076,698 to Anderson et al.
  • the chlorinated hydrocarbon elastomer-ethylene/propylene copolymer elastomer composition sheets are about 0.25-0.5 mm thick, while the ethylene polymer sheets are about 0.1-0.25 mm thick.
  • Lamination is accomplished by hot bonding, rather than by adhesive bonding, using standard equipment, such as a hot-roll calender, a rotary press, a heated hydraulic press, or sets of laminating rolls.
  • this invention is not limited to laminates in which all chlorinated hydrocarbon elastomer sheets and/or all ethylene polymer sheets are identical. It is possible and may be desirable in a multilayer laminate to vary either the chemical composition or the thickness of the sheets, as may seem appropriate.
  • the peel adhesion, elongation at break and tear strength of these laminated structures are given in the following Table I. It can be seen that the peel adhesion is very good and reaches in Example 1 a very high level of more than 12.1 kN/m. Both the elongation at break and tongue tear data also are very good.
  • the peel adhesion strength of this sample was 4.7 kN/m.
  • Laminates were prepared for peel adhesion tests according to the technique of Examples 1-5 using the compositions shown in the following Table II. The test data are given in the Table.

Landscapes

  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Claims (18)

1. Structure en feuille stratifiée comprenant des strates alternées, liées à chaud, d'un polymère linéaire d'éthylène contenant de 0 à environ 10% en poids d'un comonomère a-oléfine en C3 à C8 et d'une composition essentiellement formée d'un mélange d'environ 75-93% en poids d'un élastomère d'hydrocarbure chloré choisi dans le groupe comprenant le polyéthylène chlorosulfoné contenant environ 22-28% en poids de CI et 0,4-1,2% en poids de S et le polyéthylène chloré contenant environ 22-28% en poids de CI, avec 7-25% en poids d'un élastomère de copolymère éthylène/propylène.
2. Structure stratifiée selon la revendication 1, dans laquelle la composition essentiellement formée d'un mélange d'un élastomère d'hydrocarbure chloré avec un élastomère de copolymère éthylène/ propylène comprend aussi des additifs choisis parmi les charges, stabilisants et adjuvants de transformation, la quantité totale de tous les additifs, y compris tous pigments présents, étant de jusqu'à environ 150% relativement au mélange élastomère d'hydrocarbure chloré-élastomère de copolymère éthylène/propylène.
3. Structure stratifiée selon la revendication 2, dans laquelle l'élastomère d'hydrocarbure chloré est le polyéthylène chlorosulfoné.
4. Structure stratifiée selon la revendication 3, dans laquelle la composition contient une résine d'époxyde.
5. Structure stratifiée selon la revendication 2, dans laquelle l'élastomère d'hydrocarbure chloré est le polyéthylène chloré.
6. Structure stratifiée selon la revendication 5, dans laquelle un copolymère éthylène/acétate de vinyle sert d'adjuvant de transformation et est présent en une quantité allant jusqu'à environ 10% relativement au poids du mélange élastomère d'hydrocarbure chloré-élastomère de copolymère éthylène/propylène.
7. Structure stratifiée selon la revendication 2, formée d'une strate de polymère linéaire d'éthylène et d'une strate d'une composition essentiellement formée d'un mélange d'un élastomère d'hydrocarbure chloré avec un élastomère de copolymère éthylène/propylène.
8. Structure stratifiée selon la revendication 2, formée d'un strate de coeur de polymère linéaire d'éthylène et de deux strates extérieures d'une composition essentiellement formée d'un mélange d'un élastomère d'hydrocarbure chloré avec un élastomère de copolymère éthylène/propylène.
9. Stratifié selon la revendication 7 ou 8, dans lequel le polymère linéaire d'éthylène est le polyéthylène.
10. Structure stratifiée selon la revendication 7 ou 8, dans laquelle l'élastomère éthylène/propylène est un élastomère EPDM qui contient environ 50-75% en poids d'éthylène et 1-6% en poids de diène, le reste étant du propylène.
11. Stratifié selon la revendication 10, dans lequel la quantité d'élastomère EPDM est de 10-20% en poids du mélange comprenant l'élastomère d'hydrocarbure chloré.
12. Structure stratifiée selon la revendication 7 ou 8, dans laquelle l'élastomère de copolymère éthylène/propylène est un dipolymère éthylène/propylène.
13. Structure stratifiée selon la revendication 7, dans laquelle la strate de coeur a environ 0,1-0,25 mm d'épaisseur et les strates extérieures ont environ 0,25-0,5 mm d'épaisseur.
14. Dans un procédé pour lier à chaud une feuille d'une composition formée essentiellement d'un élastomère d'hydrocarbure chloré à une feuille d'un polymère d'éthylène pour former un stratifié, le perfectionnement consistant à utiliser une feuille d'un polymère linéaire d'éthylène contenant de 0 à environ 10% en poids d'un comonomère a-oléfine en C3 à C8 et une feuille d'une composition formée essentiellement d'un mélange d'un élastomère d'hydrocarbure chloré choisi dans le groupe comprenant le polyéthylène chlorosulfoné contenant environ 22-28% en poids de CI et 0,4-1,2% en poids de S et le polyéthylène chloré contenant environ 22-28% en poids de CI, avec un élastomère de copolymère éthylène/propylène, les proportions respectives des constituants du mélange étant d'environ 75-93% en poids du premier et 7-25% en poids du dernier.
15. Procédé selon la revendication 14, dans lequel la composition formée essentiellement d'un mélange d'un élastomère d'hydrocarbure chloré avec un élastomère éthylène/propylène comprend aussi des additifs choisis parmi les charges, stabilisants et adjuvants de transformation, la quantité totale de tous les additifs, y compris tous pigments présents, étant de jusqu'à environ 150% relativement au poids du mélange élastomère d'hydrocarbure chloré-élastomère de copolymère éthylène/propylène.
16. Procédé selon la revendication 15, dans lequel la quantité d'élastomère de copolymère éthylène/propylène dans le mélange est d'environ 10-20% en poids.
17. Procédé selon la revendication 15, dans lequel le copolymère éthylène/propylène est un élastomère EPDM qui contient environ 50-75% en poids d'éthylène et 1-6% en poids de diène, le reste étant du propylène.
18. Procédé selon la revendication 14, dans lequel l'élastomère d'hydrocarbure chloré est le polyéthylène chlorosulfoné, l'élastomère de copolymère éthylène/propylène est un élastomère EPDM; et le polymère d'éthylène est le polyéthylène.
EP19820102935 1981-04-10 1982-04-06 Feuille à structure laminée Expired EP0062886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102935T ATE15462T1 (de) 1981-04-10 1982-04-06 Bahn mit schichtstoffstruktur.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US25288381A 1981-04-10 1981-04-10
US252883 1981-04-10
US06/350,841 US4424253A (en) 1981-04-10 1982-02-25 Laminated sheet structures
US350841 1999-07-09

Publications (3)

Publication Number Publication Date
EP0062886A2 EP0062886A2 (fr) 1982-10-20
EP0062886A3 EP0062886A3 (en) 1983-09-28
EP0062886B1 true EP0062886B1 (fr) 1985-09-11

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US (1) US4424253A (fr)
EP (1) EP0062886B1 (fr)
AR (1) AR228486A1 (fr)
AU (1) AU545038B2 (fr)
BR (1) BR8201952A (fr)
CA (1) CA1178520A (fr)
DE (1) DE3266123D1 (fr)

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US10773881B2 (en) * 2015-10-05 2020-09-15 Advanced Composite Structures, Llc Air cargo container and curtain for the same
WO2019074864A1 (fr) 2017-10-10 2019-04-18 Advanced Composite Structures, Llc Loquet pour portes de conteneur de fret aérien
EP3990271A4 (fr) 2019-06-28 2022-12-28 Advanced Composite Structures, LLC Conteneur de fret aérien thermiquement isolé
US12091239B2 (en) 2021-11-11 2024-09-17 Advanced Composite Structures, Llc Formed structural panel with open core

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AU8248082A (en) 1983-04-21
EP0062886A3 (en) 1983-09-28
DE3266123D1 (en) 1985-10-17
AU545038B2 (en) 1985-06-27
BR8201952A (pt) 1983-03-08
AR228486A1 (es) 1983-03-15
CA1178520A (fr) 1984-11-27
EP0062886A2 (fr) 1982-10-20
US4424253A (en) 1984-01-03

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